Psychology Ch. 2 Biological foundations of behavior

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mikepl103
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Psychology Ch. 2 Biological foundations of behavior
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2013-10-28 20:31:26
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Psychology Biological foundations behavior
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Psychology Ch. 2 Biological foundations of behavior
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  1. peripheral nervous system is divided into what?
    somatic nervous system (skeletal muscles, voluntary movement)

    autonomic nervous sys. (basic life functions, involuntary)
  2. autonomic nerv. s. is divided into whaT
    sympathetic nervous system - "flight or flight"

    parasympathetic - "rest and digest"
  3. antagonistic drug
    blocks neurotransmitters 

    ex. schizo drugs block dopamine
  4. agonist drugs
    encourage transmission or mimicks neurotransmitter

    ex.

    caffiene increases availability of of glutamate 

    amphetamines increase availibility of dopamine 

    alcohol and anti anxiety drugs increase GABA sensitivity 

    morphine and heroin are agonists b/c they mimick the effect of endorphins which are the body's natural pain-killers

    antidepresssants increase avail. of norepinephrine and serotonin
  5. hindbrain
    • • Medulla (breathing, heartbeat)
    • • Cerebellum (balance, fine motorskill)
    • • Pons (sleep)
  6. midbrain
    • Reticular Formation(consciousness, attention, alertness, arousal, and also filters auditory and visual info )
  7. forebrain
    • • Hippocampus (memory formation)
    • • Amygdala (aggression, emotional memory)
    • • Hypothalamus (eating, drinking, procreating, hibernation)
  8. forebrain cerebral cortex regions
    • • Frontal lobe (planning, thinking)
    • • Parietal lobe (touch)
    • • Occipital lobe (vision)
    • • Temporal lobe (hearing)
  9. right hemisphere of brain does what
    Right: Perceptual andspatial skills
  10. left hemisphere of brain does what?
    Left: Language

    Broca’s Area: Responsiblefor expression & fluency

    Wernicke’s Area:Responsible forunderstanding wordmeanings
  11. visual agnosia
    • Damage to occipital lobe

    • Can’t recognize objects
  12. prosopagnosia
    • Can't differentiate faces

    • Can still make inferences,based on voice, clothes, etc.
  13. lobotomy
    cutting out prefrontal cortex

    used in treatment of schizo, depression, etc.
  14. stroke
    • 2 major types

    • Ischemic: Insufficient blood supply due to blockage

    • Hemorrhage: Bleeding into neural tissue
  15. dementia
    Dementia: Global loss of mental & social abilities,including emotion, motivation, personality

    • • E.g.,
    • • Huntington’s disease
    • • Parkinson’s disease
    • • Multiple Sclerosis
    • • Alzheimer's disease
  16. infections of CNS
    • • Meningitis
    • • HIV infections
    • • Syphilis
    • • Herpes Encephalitis
  17. epilepsy
    • Epilepsy: recurrent seizure activity
    • • Known causes (many unknown exist)

    • • head trauma
    • • metabolic disorders
    • • infection
    • • toxins
    • • tumors
  18. how to neuropsychologically evaluate someone? (determine what was effected in a brain injury)
    1) Assessing how well a person does in various tests (memory test, motor skills, attention, etc.)

    Neuro-imaging techniques

    • CAT Scan

    • fMRI (Magnetic Resonance Imaging)

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